Weeder or cultivator.



PATENTED JAN. 7, 1908.

R. 0 T A N MT L U NO .R P0 m D B E W APPLICATION FILED MAR.2B,1907.

2 SHEETS-SHEET 1.

A TYORNE VS N v5 946. PATENTED JAN. 7, 1908.

0 8 N. P. NELSON.

WEEDER 0B, GULTIVATOR. APPLIUATION FILED MAR. 28, 1907.

W LVI/"EZVTOR 'yw g 2 SHEETB-SHEET 2.

A TfOR/VE Y5 wmm l V/ YI'VESSES UNITED STATES PATENT OFFICE.

NELS P. NELSON, LEXINGTON, OREGON.

WEE DER OR CULTIVATOR.

Specification of Letters Patent.

Patented Jan. 7, 1908.

Applicati n filed March 28,1907. Serial No. 365.053.

cultivators and it consists in the novel construction and arrangement of its parts herei-nafter shown and described.

. The object of the invention is to provide a weeder having a series of cutting blades whichare so positioned upon the frameas to operate upon the roots or stalkis of the vegetation in a shearing manner; that is to say, the blades are so'twisted and disposed that they present no vertical edges to the plants which are consequently severed" and destroyed with the expenditure of a minimum amount of energy. I

The harrow is preferably made up of aseries of triangular sections suitably coupled together and bein so arranged that their a ices are disposer to the front. The said b ades are arran ed upon the lateral sides of the sections and ence are not alined and any plants that are but partly severed by a preceding blade will surely be severed by the next succeeding blade.

'In the accompanying drawing :-Figure 1 is a top plan view of the we'eder. Fig. 2 is a side elevation of the same. Fig. 3 is a perspective view of one form of'blade, and Fig. 4 is a perspective view of a modified form of blade. v

The harrow consists of a number of triangular sections suitably 0011 led together, the said sections are prefera ly triangular in lan and are disposed with their a ices tothe ront. As the said sections are sustantially v alike a description of one will answer for all.

The frame of the section is made up of the side pieces 1:1 which are connected together bythe cross pieces 2, 2 an operators seat 3 is mounted upon the cross pieces 2. The U- shaped axle 4 is beveled upon the rear cross piece 2 and the wheels 5 are journaled upon the end of said axle. The caster wheel 6 supports the forward end on the harrow section and is journaled to the yoke 7 which in turn is ivoted to the lower end of the lever 8. The ever 9 is fixed at its lower end to the axle 4 and the link 10 connects the said levers .8 and 9 together and aiiords a means whereby the harrow section.

moves the otherlever. The gear segment 11 is mounted adjacent the lever 9 and said lever 9 is provided with a spring actuated pawl 12 which engages the said gear segment.

From the foregoing description it is obvious that by swinging the lever 9 that the frame of the harrow section may be raised or lowered as desired.

The sides 1 of each harrow section are provided with cutting blades of peculiar arrangement and configuration and arranged in series while each section is provided at its forward end with a blade having diverging end portions which merge into a common forward portion which is curved along its longi-- tudinal axis. The side blades are reversible and are preferably made from elongated strips of metal having their longitudinal edges sharpened. The said strips are bent on a diagonal line at their middles so that their end portions lie in planes at an obtuse angle to each other and the end portions of the strips are secured to the side pieces 1 in such a manner that the opposite end portion will be disposed at an acute angle to the surface of the ground. As the said blades are attached to the sides of the side pieces 1 and as said side pieces are disposed at an angle to each other the said blades are not in alinement with each other consequently thevegetation that is artially severed by the forward blade is comp etely severed by the next succeeding blade.

As above intimated the. preferred form of the blade 13 is that of an elongated parallelogram which is bent into end portions upon the median digaonal line 14. The longitudinal edges of the blade are sharpened as at 15 and'theblade is rovided at each of its ends with the perforations 16 through which bolts may be passed for attaching the blade to the Thus a blade having simi-' lar end ortions and opposite cutting edges is provi ed. The said blade may be reversed so that when one cutting edge has be come dull theother said edge may be resented to the Work. It is also apparent .t at by reason of a peculiar manner in which the b ades are mounted upon the side pieces 1 and the relative position of the portlons of the blades that novertical surfaces are presented to the vegetation and hence, the cutting edges will pass over the same and not collect or drag stalks or trash. At the some time the plants will be severed with a shearing cut. Also-by reason of the fact that the cutadvantage of presenting the cutting. edges to the lants ,in the same direction is that shou d the plant be in soft earth it will not be pushed aside laterally first in one direction and then in the opposite direction but will be completely severed by one of the cutting blades bearing directly down upon the same. 4

I In the form of blade-as shown in Fig. 1 the opposite end ortions of the blade are not of the same co guration. This blade has but a single cutting edge and consequently is not reversible, its cutting end however, is so positioned as to operate upon the plants in the manner above described. This blade is not reversible. The front blade of each harroW section is provided with the diverging ends 17 which are sharpened at their forward edges and are disposed at acute angles to the surface of the ground, The forward ends of the end portions 17 merge into the forward end portion 18 which is curved along its longitudinal axis and is sharpened at its front edge as at 19. The upper ends ofthe ortion 18 is secured to the harrow section in advance'of the apex thereof. 'Each section is provided with a tongue 20 and. the

portions 15 and 17 of the blades are slightly elevated at their rear ends. The plugs.1()" are used to close the perforations 16 in the blade sections 15 in order to keep the said perforations free from dirt, etc.

Havingdescribed my invention, what I claim as new and desire to secure by Letters Patent is:

An implen'ient as described comprising a cuneate' frame, a blade mounted at the forward end thereof and having a rearwardly curved sharpened portion provided with binate rearwardly disposed diverging in clinedend portions having sharpened edges, inclined cutting blades mounted upon the sides of the frames behind the first said blade, the free ends of the cutting blades on Y 1 50 lapping the next blade-in the rear in the line of draft of the implement and at the at tached end of the rear blade.

In testimony that I claim the foregoing as my own, I have hereto affixed my signature in the presence of two witnesses. I

- NELS P'. NELSON. Witnesses W. G. ScoTT, W. P. MoMILLAN. 

